No input to Monitor

[memeluvsu3]

Hello All,

I am new to this site and not truly a PC Wiz, but i do okay.

I need some advice before a purchase anything else to try to fix my PC.
My PC for some reason just stop booting up.What happens is whn you boot it, it beeps once but the CD Drive did nt respond.And nothing goes to the monitor. So I took it to best buy to hd them look at it. When they plugged it in it came on. I was surpise. I still didnt trust the PC so i purchase another one and had the files xfer to the new PC. For some reason it did nt reboot again. The tech said while he was working on it, it shocked him. He said it could be the motherboard or the Power supply. I explain the same senario to a fried who know a little bit more that me who suggested the same thing.

Okay so what i did was purchase a new motherboard. (same one) and installed it. This time the PC boots and beeps and all lights respond but still no output to Monitor. So I purchase a new power supply and installed. Same results. After everything boots and monitor light is green it just fades to amber. I wondering if the spark destroyed the Video card. And should i now purchase a new video card or could it be something more. I have tried using different monitors but same thing happens.


Motherboard' K7t turbo
CPU' AMD Athlon
Video' AGP (thats what on it)
Ram'256 mb
OS' window me
Power supply atx 12v 350wt

any suggestions wld be greatly appreciated.

[gwallen4]

Sounds like a short.

I would disconnect all devices, drives, and remove all cards, leaving only your video card and Windows boot drive, then see if it will boot. If you can get it to boot add the devices back one at a time.

If it still won't boot, try a new video card.

[memeluvsu3]

i think i tried this but i will try it again now to see what happens.

[Budfred]

You could also take the motherboard out of the case with only the CPU w/hsf, keyboard, case speaker, video and power w/power switch and test it on a nonconductive surface (like a piece of cardboard) in case it is shorting with the case, which is fairly likely. If it works okay that way, try it back in the case, but be very careful about any place metal can touch metal. If it works again, you have eliminated the short for now, but try adding one thing at a time in case it has to do with another piece of equipment.

Also, triple check to make sure the video card is seated properly and try a different monitor if you have one available.

And Welcome to http://www.pcguide.com/ubb/pcgubb.gif

[Sylvander]

You get the single beep which means the POST has completed successfully.
The next thing that happens is that the video card is enabled, and if the video card and the monitor and all the connecting cables and sockets are o.k., then you see an image on screen.
Since this isn’t happening, you have a fault in either the system board, or the video card, or the connections, or the cable, or the monitor.
You said “nothing goes to the monitor”.
How do you know no signal is going to the monitor?
Or do you really mean “the monitor does not display any image”?
This is not the same thing.
You also said, “Still no output to the monitor”.
There may well be an output from the video card and it may get part of the way [or indeed all the way] to the monitor and still the screen shows no image.

You should download a copy of my Diagnostic Flowcharts from here
www.erniek.eclipse.co.uk/downloads/SylvanderDiagnosticCharts.zip

or else send me a personal message requesting them [zipped or not][they are probably more up to date also] and giving an e-mail address to send them to.
I send updates when any charts are revised.

Here’s one route through the DISPLAY chart:
1. Is there any sign of life in the monitor?
2. If there is none check the mains supply and lead to the monitor. If all is well, then the monitor is faulty.
Or fix any faulty cable found etc and retest.
3. If the monitor shows signs of life and the screen is lit or there is an image displayed, but not using any signal sent from the video card, this means the monitor is probably functional. Check whether the signal lead is ok. If it is not, then replace it [if that is possible on your setup] and re-test. If it is ok, then something upstream [such as the system board or video adaptor] is faulty.

Since you have tried various monitors [all of which are functional?] [and all use their own power lead and signal lead?], then it is either the motherboard or video card.
Assuming that the replacement motherboard is ok, then the video card would seem to be the culprit.